JPH074903B2 - Conductive surface-treated steel sheet and method for producing the same - Google Patents
Conductive surface-treated steel sheet and method for producing the sameInfo
- Publication number
- JPH074903B2 JPH074903B2 JP61261185A JP26118586A JPH074903B2 JP H074903 B2 JPH074903 B2 JP H074903B2 JP 61261185 A JP61261185 A JP 61261185A JP 26118586 A JP26118586 A JP 26118586A JP H074903 B2 JPH074903 B2 JP H074903B2
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- resin
- film
- plated steel
- treated steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Laminated Bodies (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は耐指紋性、耐食性などを損なうことなく導電性
を付与した表面処理鋼板およびその製造方法に関する。TECHNICAL FIELD The present invention relates to a surface-treated steel sheet to which conductivity is imparted without impairing fingerprint resistance, corrosion resistance and the like, and a method for producing the same.
（従来技術） めっき鋼板は一般に加工、取付けなどの取扱い中に指紋
が付着し易く、その付着した指紋は目立ち、外観を損ね
る。また裸の状態で使用したのでは白錆が発生し長期間
耐食性を発揮しない。このためめっき鋼板には通常クロ
メート処理を施して、樹脂単独または無機物を含有させ
た樹脂のエマルジョンを全体に薄く塗装し、樹脂皮膜で
耐指紋性、耐食性を付与している。(Prior Art) Generally, a plated steel sheet is apt to have fingerprints attached during handling such as processing and mounting, and the attached fingerprints are conspicuous and impair the appearance. Also, if it is used in a bare state, white rust will occur and corrosion resistance will not be exhibited for a long time. For this reason, the plated steel sheet is usually subjected to a chromate treatment, and a resin emulsion containing a resin alone or an inorganic material is thinly coated on the entire surface, and a resin film imparts fingerprint resistance and corrosion resistance.
（発明が解決しようとする問題点） ところでこのように樹脂皮膜を形成しためっき鋼板は建
材や器物など加工が曲げ加工だけの用途のほか、電気抵
抗溶接やハンダ付けしてアースをとるような用途に使用
される。しかしながらかかる表面処理鋼板の皮膜形成は
従来エマルジョンをロールコーティング法やカーテンフ
ロー法で塗装する方法により表面全体に行っていたた
め、電気抵抗溶接やハンダ付けを行うことができないも
のであった。この対策として皮膜厚を薄することも考え
られるが、上記方法では皮膜に導電性を持たせることが
できる程薄くできるものではなかった。このため電気抵
抗溶接やハンダ付けを行う場合には必要部分の皮膜を剥
離して、めっき鋼板を露出させねばならなかった。(Problems to be solved by the invention) By the way, the plated steel sheet on which the resin film is formed in this way is used not only for bending of building materials and appliances, but also for electrical resistance welding and soldering for grounding. Used for. However, since film formation of such a surface-treated steel sheet has conventionally been performed on the entire surface by a method of coating an emulsion by a roll coating method or a curtain flow method, electrical resistance welding or soldering cannot be performed. As a countermeasure against this, it is conceivable to reduce the thickness of the coating, but the above method has not been able to reduce the thickness so as to make the coating conductive. For this reason, in the case of performing electric resistance welding or soldering, it was necessary to peel off the coating of a necessary portion to expose the plated steel sheet.
このため耐指紋性、耐食性のほか電気抵抗溶接性やハン
ダ付け性を備えた表面処理鋼板が要望されていた。For this reason, there has been a demand for a surface-treated steel sheet having not only fingerprint resistance and corrosion resistance but also electric resistance weldability and solderability.
（問題点を解決するための手段） 本発明はめっき鋼板表面にクロメート皮膜を形成し、そ
のクロメート皮膜の上に樹脂が分散した乾燥樹脂皮膜量
0.1〜2.0g/m2の樹脂不連続皮膜を形成することによりめ
っき鋼板表面に局部的に露出した部分を無数に形成し、
電気抵抗溶接やハンダ付けできるようにした。そしてこ
の表面処理鋼板を製造するには、めっき鋼板にクロメー
ト処理を施した後、水溶性または水分散性の有機樹脂エ
マルジョンを静電霧化装置により霧化してエマルジョン
粒子が表面に分散するように塗装、乾燥して、乾燥樹脂
皮膜量0.1〜2.0g/m2の樹脂不連続皮膜を形成する方法に
よれば容易に製造できることを見出した。(Means for Solving Problems) The present invention forms a chromate film on the surface of a plated steel sheet, and a dry resin film amount in which a resin is dispersed on the chromate film.
By forming a resin discontinuous film of 0.1 ~ 2.0 g / m 2 innumerable locally exposed parts on the surface of the plated steel sheet,
Added support for electrical resistance welding and soldering. And in order to produce this surface-treated steel sheet, after the chromate treatment is applied to the plated steel sheet, a water-soluble or water-dispersible organic resin emulsion is atomized by an electrostatic atomizer so that the emulsion particles are dispersed on the surface. It was found that a method of coating and drying to form a resin discontinuous film having a dry resin film amount of 0.1 to 2.0 g / m 2 can be easily produced.
本発明の表面処理鋼板は、第１図、第２図に模型的に示
すように、めっき鋼板１の表面にクロメート皮膜２を形
成し、このクロメート皮膜２の上に有機樹脂３が分散し
た不連続皮膜を形成したもので、めっき鋼板１の表面が
有機樹脂３より局部的に無数に露出しているため、電気
抵抗溶接やハンダ付けを行うことができる。The surface-treated steel sheet of the present invention has a chromate film 2 formed on the surface of a plated steel sheet 1, and an organic resin 3 dispersed on the chromate film 2 as shown schematically in FIGS. 1 and 2. Since a continuous film is formed and the surface of the plated steel sheet 1 is locally exposed from the organic resin 3 innumerably, electric resistance welding and soldering can be performed.
クロメート皮膜のクロム量は耐食性や溶接性などの観点
から20〜200mg/m2にするのが好ましい。これは20mg/m2
未満であると耐食性が期待できず、200mg/m2を越えると
耐食性は向上するが、チップが汚れたり、チリの発生が
著しく、溶接作業性、管理が繁雑になる。このクロメー
ト皮膜を形成するクロメート処理は公知のクロメート処
理で十分である。The amount of chromium in the chromate film is preferably 20 to 200 mg / m 2 from the viewpoint of corrosion resistance and weldability. This is 20 mg / m 2
If it is less than 200, corrosion resistance cannot be expected, and if it exceeds 200 mg / m 2 , corrosion resistance is improved, but chips are contaminated and dust is significantly generated, and welding workability and management become complicated. As the chromate treatment for forming this chromate film, a known chromate treatment is sufficient.
樹脂皮膜の形成は水溶性または水分散性の有機樹脂エマ
ルジョンを用いて、このエマルジョンを静電霧化装置に
より霧化し、エマルジョン粒子が表面に分散するように
塗装する。静電霧化装置で有機樹脂エマルジョンを霧化
すると、エマルジョンは微細な液滴になるため、同一箇
所を極く短時間塗装した場合めっき鋼板の表面全体は塗
装されず、未塗装部分が無数に残存する。従って塗装後
乾燥すれば、電気抵抗溶接やハンダ付けを行うことがで
きる。To form the resin film, a water-soluble or water-dispersible organic resin emulsion is used, and this emulsion is atomized by an electrostatic atomizer, and coating is performed so that emulsion particles are dispersed on the surface. When an organic resin emulsion is atomized with an electrostatic atomizer, the emulsion becomes fine droplets, so if the same spot is coated for an extremely short time, the entire surface of the plated steel sheet will not be coated, and the uncoated portion will be innumerable. To remain. Therefore, after coating and drying, electric resistance welding or soldering can be performed.
エマルジョンの有機樹脂としては、樹脂単独でもよく、
無機物を含有させた樹脂でもよく、種類に限定はない。The organic resin of the emulsion may be a resin alone,
A resin containing an inorganic substance may be used, and the kind is not limited.
樹脂皮膜量は乾燥状態で0.1〜2.0g/m2にする。これは0.
1g/m2未満であると未塗装部分が多く、耐食性を主とし
てクロメート皮膜に依存し、かつ未塗装部分に指紋が付
着し易く、耐食性、耐指紋性が不十分となり、一方2.0g
/m2を越えると樹脂が不連続皮膜にならず、電気抵抗溶
接やハンダ付けができなくなるからである。The amount of resin film is 0.1 to 2.0 g / m 2 in the dry state. This is 0.
If it is less than 1 g / m 2 , there are many unpainted parts, the corrosion resistance mainly depends on the chromate film, and fingerprints are easily attached to the unpainted parts, resulting in insufficient corrosion resistance and fingerprint resistance, while 2.0 g
If it exceeds / m 2 , the resin will not form a discontinuous film, and electrical resistance welding and soldering will not be possible.
なお本発明の場合、めっき鋼板はどのような種類でもよ
く、例えば亜鉛または亜鉛合金めっき鋼板、アルミニウ
ムまたはアルミニウム合金めっき鋼板、銅めっき鋼板な
どでもよい。またこれらのめっき鋼板の製造法は問わ
ず、溶融めっき法、電気めっき法、蒸着法であってもよ
い。In the case of the present invention, the plated steel sheet may be of any type, for example, zinc or zinc alloy plated steel sheet, aluminum or aluminum alloy plated steel sheet, copper plated steel sheet, or the like. Further, regardless of the manufacturing method of these plated steel sheets, a hot dipping method, an electroplating method, or a vapor deposition method may be used.
（実施例） 第１表に示すように、種々のめっき鋼板にクロメート処
理を施した後、水溶性または水分散性の有機樹脂エマル
ジョンを静電霧化装置で霧化して塗装し、乾燥した。(Example) As shown in Table 1, various plated steel sheets were subjected to chromate treatment, and then a water-soluble or water-dispersible organic resin emulsion was atomized by an electrostatic atomizer to be coated and dried.
次にこの表面処理鋼板より試験片を採取して、その一部
を耐食性試験するとともに、残りのものに耐指紋付着性
試験とスポット溶接性試験を施した。この試験結果を第
１表の右側に示す。Next, test pieces were sampled from this surface-treated steel sheet, a part of them was subjected to a corrosion resistance test, and the rest were subjected to a fingerprint adhesion resistance test and a spot weldability test. The test results are shown on the right side of Table 1.
なお、各試験の試験方法および評価は次の通りである。The test method and evaluation of each test are as follows.
（１）耐食性試験 （イ）試験方法 JIS−Ｚ−2371による塩水噴霧試験 （ロ）評価基準 ◎ 錆発生なし ○ 極く僅かに錆発生 △ 錆発生面積が30％以下 × 錆発生面積が30％を越える （２）耐指紋付着性試験 （イ）試験方法 人工汗を人工指に付着させ、1Kg/cm2の圧力で試験片に
一定時間押付ける。(1) Corrosion resistance test (a) Test method Salt water spray test according to JIS-Z-2371 (b) Evaluation criteria ◎ No rust occurrence ○ Very slight rust occurrence △ Rust occurrence area 30% or less × Rust occurrence area 30% (2) Anti-fingerprint adhesion test (a) Test method Apply artificial sweat to the artificial finger and press it on the test piece for a certain period of time with a pressure of 1 Kg / cm 2 .
（ロ）評価基準 ◎ 指紋付着なし ○ 極く僅かに指紋付着 △ 指紋の50％が付着 × 指紋全体が付着 （３）スポット溶接性試験 （イ）試験方法 電極 4.5mmφ−CF、通電時間 12サイクル、加圧力 2
50Kg （ロ）評価基準 ◎ 引張強度351Kgf以上 ○ 引張強度251〜350Kgf △ 引張強度251Kgf以下 × 溶接できず （効果） 以上のごとく本発明の表面処理鋼板はクロメート皮膜と
有機樹脂の不連続皮膜を有するので、耐指紋性と耐食性
とを有し、しかもめっき鋼板の霧出した部分が無数に存
在するので、電気抵抗溶接やハンダ付けを行うことがで
きる。(B) Evaluation criteria ◎ No fingerprint adhered ○ Very slight fingerprint adhered △ 50% of fingerprint adhered × Entire fingerprint adhered (3) Spot weldability test (a) Test method electrode 4.5mmφ-CF, energizing time 12 cycles , Pressure 2
50Kg (b) Evaluation criteria ◎ Tensile strength 351Kgf or more ○ Tensile strength 251 to 350Kgf △ Tensile strength 251Kgf or less × Not weldable (Effect) As described above, since the surface-treated steel sheet of the present invention has the chromate film and the discontinuous film of the organic resin, it has fingerprint resistance and corrosion resistance, and in addition, there are countless spouted portions of the plated steel sheet. , Electric resistance welding and soldering can be performed.
第１図および第２図はそれぞれ本発明の表面処理鋼板を
模型的に示した断面図および平面図である。 １…めっき鋼板、２…クロメート皮膜、３…有機樹脂1 and 2 are a cross-sectional view and a plan view, respectively, schematically showing the surface-treated steel sheet of the present invention. 1 ... Plated steel plate, 2 ... Chromate film, 3 ... Organic resin
フロントページの続き (72)発明者 清水 之弘 大阪府堺市石津西町５番地 日新製鋼株式 会社阪神研究所内 (56)参考文献 特開 昭54−163978（ＪＰ，Ａ) 特開 昭47−38542（ＪＰ，Ａ) 特開 昭59−194837（ＪＰ，Ａ)Front page continuation (72) Inventor Norihiro Shimizu 5 Ishizu Nishimachi, Sakai City, Osaka Prefecture Hanshin Research Institute Ltd. (56) Reference JP 54-163978 (JP, A) JP 47-38542 (JP, A) JP-A-59-194837 (JP, A)
Claims (2)
し、そのクロメート皮膜の上に樹脂が分散した樹脂皮膜
量0.1〜2.0g/m2の樹脂不連続皮膜を形成したことを特徴
とする導電性表面処理鋼板。1. A conductive material comprising a chromate film formed on the surface of a plated steel sheet, and a resin discontinuous film having a resin film amount of 0.1 to 2.0 g / m 2 in which a resin is dispersed on the chromate film. Surface treated steel sheet.
水溶性または水分散性の有機樹脂エマルジョンを静電霧
化装置により霧化してエマルジョン粒子が表面に分散す
るように塗装、乾燥して、乾燥樹脂皮膜量0.1〜2.0g/m2
の樹脂不連続皮膜を形成することを特徴とする導電性表
面処理鋼板の製造方法。2. After the chromate treatment of the plated steel sheet,
A water-soluble or water-dispersible organic resin emulsion is atomized by an electrostatic atomizer and coated so that the emulsion particles are dispersed on the surface, dried, and a dry resin film amount of 0.1 to 2.0 g / m 2
1. A method for producing a conductive surface-treated steel sheet, which comprises forming the resin discontinuous coating as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61261185A JPH074903B2 (en) | 1986-11-01 | 1986-11-01 | Conductive surface-treated steel sheet and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61261185A JPH074903B2 (en) | 1986-11-01 | 1986-11-01 | Conductive surface-treated steel sheet and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63114635A JPS63114635A (en) | 1988-05-19 |
| JPH074903B2 true JPH074903B2 (en) | 1995-01-25 |
Family
ID=17358313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61261185A Expired - Lifetime JPH074903B2 (en) | 1986-11-01 | 1986-11-01 | Conductive surface-treated steel sheet and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074903B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2640395B2 (en) * | 1991-03-13 | 1997-08-13 | 日新製鋼株式会社 | Dispersion resin film forming equipment |
| JP2736477B2 (en) * | 1991-03-13 | 1998-04-02 | 日新製鋼株式会社 | Method of forming dispersed resin film |
| JP2008119181A (en) * | 2006-11-10 | 2008-05-29 | J Make:Kk | Roller massager |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54163978A (en) * | 1978-06-15 | 1979-12-27 | Kikusui Kagaku Kogyo Kk | Production of three dimentional decorative metal plate |
| JPS59194837A (en) * | 1983-04-20 | 1984-11-05 | 日新製鋼株式会社 | One-surface coated steel plate |
-
1986
- 1986-11-01 JP JP61261185A patent/JPH074903B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63114635A (en) | 1988-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |